Supplier Page from Thermo Fisher Scientific for Sodium chloride crystal optic rectangle, 41mm x 23mm x 6mm (drilled), polished both sides
Esculin hydrate, 97% from Thermo Fisher Scientific
Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98% from Thermo Fisher Scientific
Fluorobenzene, 99% from Thermo Fisher Scientific
meso-Erythritol, 99% from Thermo Fisher Scientific